Reference for Chullin 158:21

אי פליגי בההיא הוה אמינא

A person may not slaughter a koy on a festival, and if he did slaughter it he may not cover up its blood.<span class="x" onmousemove="('comment',' V. Lev. XVII, 13. The law of covering up the blood after slaughtering applies to wild animals and fowls only. A koy, therefore, since it is part goat and part deer, may not be slaughtered on a festival for there is no absolute duty in regard to it to cover up its blood.');">¹¹</span>

Jastrow

Jastrow

Jastrow

Jastrow